What is SSL?

What is Secure Sockets Layer?

Secure Sockets Layer, SSL, is the standard security technology for creating an encrypted link between a web server and a browser. This link ensures that all data passed between the web server and browser remains private and integral. SSL is an industry standard and is used by millions of websites in the protection of their online transactions with their customers. In order to be able to generate an SSL link, a web server requires an SSL Certificate.

When you choose to activate SSL on your web server you will be prompted to complete a number of questions about the identity of your website (e.g. your website's URL) and your company (e.g. your company's name and location).


Private Key and Public Key

Your web server then creates two cryptographic keys – a Private Key and a Public Key. Your Private Key is so called for a reason – it must remain private and secure. The Public Key does not need to be secret and is placed into a Certificate Signing Request [CSR] – a data file also containing your details. You should then submit the CSR during the SSL Certificate application process to Digi-Sign, the Digi-SSL™ Certification Authority, who will validate your details and issue an SSL Certificate containing your details and allowing you to use SSL.

Your web server will match your issued SSL Certificate to your Private Key. Your web server will then be able to establish an encrypted link between the website and your customer's web browser.


NOTE: For detailed application and installation instructions please refer to section
'Step by step instructions to set up SSL on your web server' of this guide.